java.lang.Object
- org.keycloak.models.map.storage.chm.ConcurrentHashMapCrudOperations<K,V,M>

All Implemented Interfaces:

CrudOperations<V,M>

Direct Known Subclasses:

SingleUseObjectConcurrentHashMapCrudOperations
```
public class ConcurrentHashMapCrudOperations<K,V extends AbstractEntity & UpdatableEntity,M>
extends Object
implements CrudOperations<V,M>
```
It contains basic object CRUD operations as well as bulk read(org.keycloak.models.map.storage.QueryParameters) and bulk delete(org.keycloak.models.map.storage.QueryParameters) operations, and operation for determining the number of the objects satisfying given criteria (getCount(org.keycloak.models.map.storage.QueryParameters)).

Author:

hmlnarik

Field Summary

Fields
Modifier and Type	Field	Description
`protected DeepCloner`	`cloner`
`protected Map<SearchableModelField<? super M>,MapModelCriteriaBuilder.UpdatePredicatesFunc<K,V,M>>`	`fieldPredicates`
`protected StringKeyConverter<K>`	`keyConverter`
`protected ConcurrentMap<K,V>`	`store`

Constructor Summary

Constructors
Constructor	Description
`ConcurrentHashMapCrudOperations(Class<M> modelClass, StringKeyConverter<K> keyConverter, DeepCloner cloner)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`V`	`create(V value)`	Creates an object in the storage.
`MapModelCriteriaBuilder<K,V,M>`	`createCriteriaBuilder()`
`boolean`	`delete(String key)`	Deletes object with the given `key` from the storage, if exists, no-op otherwise.
`long`	`delete(QueryParameters<M> queryParameters)`	Deletes objects that match the given criteria.
`long`	`getCount(QueryParameters<M> queryParameters)`	Returns the number of objects satisfying given `criteria` from the storage.
`StringKeyConverter<K>`	`getKeyConverter()`
`V`	`read(String key)`	Returns object with the given `key` from the storage or `null` if object does not exist.
`Stream<V>`	`read(QueryParameters<M> queryParameters)`	Returns stream of objects satisfying given `criteria` from the storage.
`V`	`update(V value)`	Updates the object with the key of the `value`'s ID in the storage if it already exists.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.keycloak.models.map.storage.CrudOperations
determineKeyFromValue, exists, exists

- Field Detail
  - store
```
protected final ConcurrentMap<K,V extends AbstractEntity & UpdatableEntity> store
```
  - fieldPredicates
```
protected final Map<SearchableModelField<? super M>,MapModelCriteriaBuilder.UpdatePredicatesFunc<K,V extends AbstractEntity & UpdatableEntity,M>> fieldPredicates
```
  - keyConverter
```
protected final StringKeyConverter<K> keyConverter
```
  - cloner
```
protected final DeepCloner cloner
```
- Constructor Detail
  - ConcurrentHashMapCrudOperations
```
public ConcurrentHashMapCrudOperations(Class<M> modelClass,
                                       StringKeyConverter<K> keyConverter,
                                       DeepCloner cloner)
```
- Method Detail
  - create
```
public V create(V value)
```
    Description copied from interface: CrudOperations
    
    Creates an object in the storage.
    ID of the value may be prescribed in id of the value. If the id is null or its format is not matching the store internal format for ID, then the value's ID will be generated and returned in the id of the return value.
    
    Specified by:
    
    create in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    value - Entity to create in the store
    
    Returns:
    
    Entity representing the value in the store. It may or may not be the same instance as value
    
    See Also:
    
    AbstractEntity.getId()
  - read
```
public V read(String key)
```
    Description copied from interface: CrudOperations
    
    Returns object with the given key from the storage or null if object does not exist.
    If V implements ExpirableEntity this method should not return entities that are expired. See ExpirableEntity JavaDoc for more details. TODO: Consider returning Optional<V> instead.
    
    Specified by:
    
    read in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    key - Key of the object. Must not be null.
    
    Returns:
    
    See description
  - update
```
public V update(V value)
```
    Description copied from interface: CrudOperations
    
    Updates the object with the key of the value's ID in the storage if it already exists.
    
    Specified by:
    
    update in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    value - Updated value
    
    Returns:
    
    the previous value associated with the specified key, or null if there was no mapping for the key. (A null return can also indicate that the map previously associated null with the key, if the implementation supports null values.)
    
    See Also:
    
    AbstractEntity.getId()
  - delete
```
public boolean delete(String key)
```
    Description copied from interface: CrudOperations
    
    Deletes object with the given key from the storage, if exists, no-op otherwise.
    
    Specified by:
    
    delete in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Returns:
    
    Returns true if the object has been deleted or result cannot be determined, false otherwise.
  - delete
```
public long delete(QueryParameters<M> queryParameters)
```
    Description copied from interface: CrudOperations
    
    Deletes objects that match the given criteria.
    
    Specified by:
    
    delete in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    queryParameters - parameters for the query like firstResult, maxResult, requested ordering, etc.
    
    Returns:
    
    Number of removed objects (might return -1 if not supported)
  - createCriteriaBuilder
```
public MapModelCriteriaBuilder<K,V,M> createCriteriaBuilder()
```
  - getKeyConverter
```
public StringKeyConverter<K> getKeyConverter()
```
  - read
```
public Stream<V> read(QueryParameters<M> queryParameters)
```
    Description copied from interface: CrudOperations
    
    Returns stream of objects satisfying given criteria from the storage. The criteria are specified in the given criteria builder based on model properties.
    If V implements ExpirableEntity this method should not return entities that are expired. See ExpirableEntity JavaDoc for more details.
    
    Specified by:
    
    read in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    queryParameters - parameters for the query like firstResult, maxResult, requested ordering, etc.
    
    Returns:
    
    Stream of objects. Never returns null.
  - getCount
```
public long getCount(QueryParameters<M> queryParameters)
```
    Description copied from interface: CrudOperations
    
    Returns the number of objects satisfying given criteria from the storage. The criteria are specified in the given criteria builder based on model properties.
    
    Specified by:
    
    getCount in interface CrudOperations<K,V extends AbstractEntity & UpdatableEntity>
    
    Parameters:
    
    queryParameters - parameters for the query like firstResult, maxResult, requested ordering, etc.
    
    Returns:
    
    Number of objects. Never returns null.

Class ConcurrentHashMapCrudOperations<K,​V extends AbstractEntity & UpdatableEntity,​M>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.keycloak.models.map.storage.CrudOperations

Field Detail

store

fieldPredicates

keyConverter

cloner

Constructor Detail

ConcurrentHashMapCrudOperations

Method Detail

create

read

update

delete

delete

createCriteriaBuilder

getKeyConverter

read

getCount

Class ConcurrentHashMapCrudOperations<K,V extends AbstractEntity & UpdatableEntity,M>